The 25-year-old has agreed an extension on his previous contract which was due to expire in 2020, however the club has not yet revealed when the midfielder’s new deal will run to.

The central midfielder has had to compete with Granit Xhaka for game time in what has often been a three-man midfield under Arsene Wenger this season, with the Eygptian only starting nine Premier League games so far this term.

The Arsenal man teased the good news on Twitter, minutes before Arsenal posted confirmation of the signing.

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The midfielder also posted a message to fans, saying: ‘Officially we will be together for a longer time, in order to reach what we started, and to put Arsenal in it’s deserved spot in Europe and the whole world.’

Fellow Arsenal midfielder Jack Wilshere is yet to agree a new deal with his contract expiring this summer, while Aaron Ramsey has yet to begin talks over his deal which runs until the end of next season.